Roof anchor device



FIG. 1 is a perspective view of a roof anchor device showing my new design thereof;

FIG. 2 is a cross sectional view taken along 2—2 in FIG. 1 thereof;

FIG. 3 is a cross sectional view taken along 3—3 in FIG. 1 thereof;

FIG. 4 is a bottom perspective view thereof; and,

FIG. 5 is a side elevational plan view thereof.

The opposite side view of FIG. 5 is a mirror image thereof. 

The ornamental design for a roof anchor device, as shown and described. 